First Cray T3E Customer System Is Shipped To
Pittsburgh Supercomputing Center

In First Three Weeks of Operation, Applications are Running in Parallel
Mode on New Cray System

EAGAN, Minn., April 17, 1996 -- The first CRAY T3E scalable parallel
system has been installed at the Pittsburgh Supercomputing Center (PSC)
and is already running parallel applications, Cray Research announced
today.

Although Cray installed this early-access system only three weeks ago, six
applications are now running in parallel mode, said PSC officials, and a number
of additional applications are targeted for near-term deployment. PSC
scientific co-director Michael Levine said that all applications running to
date on the new system have produced correct results and that PSC experts have
verified hardware and software stability with repeated long overnight runs.

Applications selected for early migration to the CRAY T3E system include
several developed by PSC staff and users, as well as frequently used off-the-shelf
packages ported and optimized for scalable parallel computing
under PSC's Parallel Applications Technology Program partnership with
Cray. Applications already running include major quantum chemistry and
biomedical applications (CHARMM, GAMESS and AMBER). Others to be
added will include software for crystallographic structure determination,
properties of advanced materials, leading-edge environmental and finite-element
multiphysics codes and Msearch, PSC's parallel genome sequence
database searching and alignment package.

Cray said volume shipments of the new supercomputer are slated to begin
in third quarter. PSC's system will be upgraded over time and ultimately
scale to 512 processors. The center will continue operating its prior-generation
CRAY T3D system for production problems and will replace it
when the CRAY T3E reaches 512 processors, according to Levine, who
made a presentation at an Executive Cray User Group meeting today on the
status of the CRAY T3E system and PSC's applications migration progress.

"On behalf of the national scientific community, we at PSC are looking
forward to the substantially increased capability of the new CRAY T3E,"
Levine said. "Its faster processing and communications speeds, coupled
with a much larger memory, will enhance our ability to attack leading-edge
problems while maintaining our multi-year investment in highly
optimized applications programs. This will keep PSC, the NSF
supercomputer centers program and American researchers in a world
leadership position."

Levine said that over the course of the last three years, PSC users have run
a wide-range of industrial and scientific problems on the current CRAY T3D
supercomputer, consuming about 4.6 million processing hours. "When we
get into full production with the CRAY T3E," said Levine, "we expect
scientific productivity to improve by a factor of three to four."

"We are pleased that this early access system is enabling PSC application
experts to make such rapid advances in migrating their applications to the
CRAY T3E environment," said Robert H. Ewald, Cray Research president and
chief operating officer. "The CRAY T3E preserves the macroarchitecture
and programming environment of the CRAY T3D. This consistency protects
PSC's parallel applications investment and contributes to this exceptional
progress by PSC and Cray personnel. This early applications progress will
enable the production use of the CRAY T3E at PSC and other customers
later this year."

Cray said that it had more than $160 million in advance orders for the
CRAY T3E system at year-end 1995.

The Pittsburgh Supercomputing Center, a joint effort of Carnegie Mellon
University and the University of Pittsburgh together with Westinghouse
Electric Corp., was established in 1986 by a grant from the National Science
Foundation with support from the Commonwealth of Pennsylvania.
Additional major support comes from the National Institutes of Health. PSC's
mission is to develop and make available state-of-the-art high-performance
computing for scientific researchers nationwide.

Cray Research provides the leading high-performance computing tools and
services to help solve customers' most challenging problems.